| 1. | Two novel preionization technologies are presented . one is " multi - segmented coaxial pulsed - preionization "
第一种技术称为“纵向多段脉冲预电离“技术。 |
| 2. | A number of metal cirque electrodes surround equidistantly outside the glass discharge tube , acting as preionization electrodes
在玻璃放电管的外表面紧密套上若干圆环形电极，作为预电离电极。 |
| 3. | It is show that , for the ultraviolet pre - ionization tea co2 laser , the absorption of two photos in the process of the photo - ionization plays an important role
研究表明，在紫外预电离teaco _ 2激光器中的光离化过程中双光子吸收起着十分重要的作用。 |
| 4. | In contrast to pulsed discharge without preionization , the working voltage of the laser falls about 20 % and the electro - optical efficiency is improved approximately 30 %
和无预电离的脉冲放电相比，激光器的工作电压下降了大约20 ，电光转换效率提高了大约30 。 |
| 5. | The theoretical calculations and the experiments suggest that , double pre - ionization has an obvious advantage for increasing the initial electron density between the main electrodes
理论计算与实验表明，双预电离在提高主电极间初始电子密度方面存在着明显的优越性。 |
| 6. | Another is " helical transverse - pulsed preionization " . two comparatively parallel copper foil strips surround helically outside the glass discharge tube , acting as preionization electrodes
在玻璃放电管的外表面螺旋地粘上两条相对平行的金属箔，作为预电离电极。 |
| 7. | Finally , based on the theoretical and experimental studies above , we bring forward two new schemes of pulsed - preionization slab co : laser with diffusive cooling
最后，在前述理论和实验的基础上，提出了两种新型的脉冲预电离扩散冷却板条co _ 2激光器方案，进行了可行性研究。 |
| 8. | In order to improve the output quality of th e laser , we brought forward the concept of double pre - ionization , which is beneficial for the effective excitation of the laser media in the resonator
为了提高激光器输出性能，我们提出了有利于腔内介质有效激发的双预电离概念。 |
| 9. | Therefore , either reinforcing the pre - ionization or eliminating the harmful impurity is propitious to increasing the effective excitation of the laser media in the resonator so as to increase the output power
因此增强预电离和消除有害杂质均有利于提高腔内激光介质的有效激发进而提高激光器输出功率。 |
| 10. | The present thesis is devoted to improving the excitation of the laser media ( gas mixture ) in the resonator of the high - average - power tea co2 laser by means of reinforcing the pre - ionization and eliminating the harmful impurity
本文正是从提高预电离及清除混合气中的杂质这两个方面研究改善高平均功率teaco _ 2激光器腔内介质(混合气体)的激发性能的。 |
